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United States Patent | 6,156,014 |
Petersen ,   et al. | December 5, 2000 |
A dispenser for dispersing of a drug comprising a housing (1) forming a cylinder. The cylinder is at one end closed by an end wall (2) having an outlet pipe (3) and the other end is closed by a plunger (4) which is axially displaceable into the cylinder. The outer end of the plunger (4) is secured to the inner side of a cup shaped cap (13, 14) sliding over the outer side of the cylinder. When the plunger (4) is pressed into the cylinder, the upper edge of the housing (1) being provided with outwardly projecting hooks (15) sliding in corresponding grooves (16) in the inner side of the side wall (14) of the cap wall irreversibly engage windows (20) at the bottom (13) of the cap. The cap (13, 14) and the housing (1) is made from differently colored materials.
Inventors: | Petersen; Kim Stengaard (Hvidovre, DK); Elk; Svend (Birkeroed, DK); Koster; Hans (Hellerup, DK) |
Assignee: | Novo Nordisk A/S (Bagsv.ae butted.rd, DK) |
Appl. No.: | 428761 |
Filed: | October 28, 1999 |
Apr 01, 1993[DK] | 0392/93 |
Current U.S. Class: | 604/218; 604/187 |
Intern'l Class: | A61M 005/00 |
Field of Search: | 604/218,187,208,220,228,229,222 |
3943927 | Mar., 1976 | Norgren | 604/218. |
4091812 | May., 1978 | Helixon | 604/218. |
5984897 | Nov., 1999 | Petersen et al. | 604/187. |
Foreign Patent Documents | |||
27 14 818 | Oct., 1977 | DE. | |
WO91/11212 | Aug., 1991 | WO. | |
WO92/06727 | Apr., 1992 | WO. |